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S20910 Stainless Steel vs. 4032 Aluminum

S20910 stainless steel belongs to the iron alloys classification, while 4032 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
120
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 14 to 39
6.7
Fatigue Strength, MPa 310 to 460
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
28
Shear Strength, MPa 500 to 570
260
Tensile Strength: Ultimate (UTS), MPa 780 to 940
390
Tensile Strength: Yield (Proof), MPa 430 to 810
320

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1080
180
Melting Completion (Liquidus), °C 1420
570
Melting Onset (Solidus), °C 1380
530
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 13
140
Thermal Expansion, µm/m-K 16
19

Otherwise Unclassified Properties

Base Metal Price, % relative 22
10
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 4.8
7.8
Embodied Energy, MJ/kg 68
140
Embodied Water, L/kg 180
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
25
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
700
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 28 to 33
41
Strength to Weight: Bending, points 24 to 27
45
Thermal Diffusivity, mm2/s 3.6
59
Thermal Shock Resistance, points 17 to 21
20

Alloy Composition

Aluminum (Al), % 0
81.1 to 87.2
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0 to 0.1
Copper (Cu), % 0
0.5 to 1.3
Iron (Fe), % 52.1 to 62.1
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0.5 to 1.3
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
11 to 13.5
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15